Cycloheptan

Bezeichnung:Cycloheptan

CAS-Nr291-64-5

Englisch Name:CYCLOHEPTANE

CBNumberCB7323568

SummenformelC7H14

Molgewicht98.19

MOL-Datei291-64-5.mol

Synonyma

Cycloheptan

Cycloheptan physikalisch-chemischer Eigenschaften

Schmelzpunkt	-12 °C
Siedepunkt	118.5 °C(lit.)
Dichte	0.811 g/mL at 25 °C(lit.)
Dampfdruck	44 mm Hg ( 37.7 °C)
Brechungsindex	n20/D 1.445(lit.)
Flammpunkt	43 °F
storage temp.	Flammables area
Löslichkeit	Soluble in alcohol, benzene, chloroform, ether, and ligroin (Weast, 1986)
Aggregatzustand	Liquid
Farbe	Clear colorless
Wasserlöslichkeit	Soluble in water 30 mg @ 20°C.
BRN	1900279
Henry's Law Constant	9.35 x 10^-2 atm?m³/mol(approximate - calculated from water solubility and vapor pressure)
Expositionsgrenzwerte	Organic synthesis; gasoline component.
Dielectric constant	2.0800000000000001
CAS Datenbank	291-64-5(CAS DataBase Reference)
EPA chemische Informationen	Cycloheptane (291-64-5)

Sicherheit

Kennzeichnung gefährlicher	F,Xn
R-Sätze:	11-65
S-Sätze:	16-23-24/25-62
RIDADR	UN 2241 3/PG 2
WGK Germany	2
RTECS-Nr.	GU3140000
HazardClass	3
PackingGroup	II
HS Code	29021900
Giftige Stoffe Daten	291-64-5(Hazardous Substances Data)

Gefahreninformationscode (GHS)

CYCLOHEPTANE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
R65:Gesundheitsschädlich: kann beim Verschlucken Lungenschäden verursachen.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S24/25:Berührung mit den Augen und der Haut vermeiden.
S62:Bei Verschlucken kein Erbrechen herbeiführen. Sofort ärztlichen Rat einholen und Verpackung oder dieses Etikett vorzeigen.
Chemische Eigenschaften
Clear colourless liquid
Physikalische Eigenschaften
Clear, oily, flammable liquid with a faint odor resembling cyclohexane, cyclooctane, or gasoline.
Verwenden
Cycloheptane is used as a nonpolar solvent for the chemical industry and as an intermediate in the manufacture of chemicals and pharmaceutical drugs. It can be used to get fluorocycloheptane.
Synthesis Reference(s)
Journal of the American Chemical Society, 95, p. 1669, 1973 DOI: 10.1021/ja00786a057
Tetrahedron Letters, 17, p. 463, 1976 DOI: 10.1016/S0040-4039(00)77883-X
The Journal of Organic Chemistry, 40, p. 3652, 1975 DOI: 10.1021/jo00913a008
Allgemeine Beschreibung
A colorless oily liquid. Insoluble in water and less dense than water. Flash point 60°F. Vapors heavier than air. Inhalation of high concentrations may have a narcotic effect. Used to make other chemicals.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
Saturated aliphatic hydrocarbons, such as CYCLOHEPTANE, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents.
Health Hazard
May be harmful by inhalation, ingestion, or skin absorption. May cause eye and skin irritation.
Brandgefahr
Special Hazards of Combustion Products: Vapor may travel considerable distance to a source of ignition and flash back. Container explosion may occur under fire conditions. Forms explosive mixures in air.
Environmental Fate
Biological. Cycloheptane may be oxidized by microbes to cycloheptanol, which may oxidize to give cycloheptanone (Dugan, 1972).
Photolytic. The following rate constants were reported for the reaction of cycloheptane and OH radicals in the atmosphere: 1.31 x 10^-12 cm³/molecule?sec at 298 K (Atkinson, 1985) and 1.25 x 10^-11 cm³/molecule?sec (Atkinson, 1990).
Chemical/Physical. Cycloheptane will not hydrolyze because it has no hydrolyzable functional group.
läuterung methode
Distil it from sodium using a Vigreux column (p 11), under nitrogen. It is highly flammable. [Bocian & Strauss J Am Chem Soc 99 2866 1977, Ruzicka et al. Helv Chim Acta 28 395 1945, Beilstein 5 H 92, 5 IV 92.]

CYCLOHEPTANE Upstream-Materialien And Downstream Produkte

Cycloheptan Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

291-64-5, CYCLOHEPTANE Verwandte Suche:

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